US3063733A - Vehicle suspension systems - Google Patents

Vehicle suspension systems Download PDF

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Publication number
US3063733A
US3063733A US861313A US86131359A US3063733A US 3063733 A US3063733 A US 3063733A US 861313 A US861313 A US 861313A US 86131359 A US86131359 A US 86131359A US 3063733 A US3063733 A US 3063733A
Authority
US
United States
Prior art keywords
chassis
spring
axle
lever
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US861313A
Other languages
English (en)
Inventor
Morris Bryan John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Application granted granted Critical
Publication of US3063733A publication Critical patent/US3063733A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
    • B60G11/46—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs
    • B60G11/465—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs with a flexible wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
    • Y10S75/95—Consolidated metal powder compositions of >95% theoretical density, e.g. wrought
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles

Definitions

  • This invention relates to suspension systems for vehicles of the kind having wheels located upon opposite sides of the vehicle.
  • the conventional leaf springs are very strong. This leads to a very harsh ride characteristic when the vehicle is unloaded. with the result that the driving wheels are often clear of the ground when the vehicle is in motion. This leads to accelerated tire and transmission wear. The springs are also exposed to moisture and dirt thrown up by the vehicle wheels.
  • the object of this invention is to provide an improved anti-roll suspension system which overcomes the above disadvantages.
  • a vehicle anti-roll suspension system comprises a pair of substantially cylindrical springs deformable between their ends and located one at each side of the vehicle centreline and inboard of the body or chassis, a pair of levers pivotably connected intermediate their ends to said body or chassis and having opposite ends respectively associated with one of the said springs and with an axle or like wheel carrying means.
  • the pivotable connection intermediate the ends of the levers is a spherical joint which is positioned outboard of the line joining the points at which the lever is joined to the axle and the said spring, which for preference is pneumatic.
  • the axle is located transversely by light leaf springs, which also serve the purpose in conjunction with the lever of carrying torque due to braking or acceleration.
  • the four points namely the pivot connection of the lever to the chassis, the virtual centre of the spring, the connection point of the spring to the axle and the connection of the lever to the axle, when taken in that order to be at the four corners of a parallelogram torque is carried without imposing a bending moment on the leaf spring. It is possible that the four points mentioned above will not be exactly coplanar but only substantially so in which case there will be some slight bending moment imposed on the leaf spring.
  • FIGURE 1 is a side elevation of a vehicle suspension system
  • FIGURE 2 is a plan view of FIGURE 1.
  • the vehicle illustrated and described is of the commercial type having dual wheels 1 and a chassis 2.
  • the chassis 2 has parallel side members 2a and an axle 3 carries the dual wheels 1.
  • Two saddles 4 are provided on the axle 3 inboard of the wheels 1 and outboard of the chassis 2 and light leaf springs 5 are clamped to the top of each saddle 4, and opposite ends of each spring are pivotally secured to the chassis side members 2a through shackle pins 6 and hanger links 7 respectively.
  • Each saddle 4 has a pair of lugs 4a projecting forwardly of the axle 3 near the base of the saddle and a pin 4b extending through each pair of lugs 4a.
  • the holes for the pins 4b are co-axial and parallel to the wheel axle 3.
  • a spherical joint 8 is disposed, comprising a socket 8a fastened to and on the underside of each chassis side member 2a, a ball 8b rotatable in each socket 8a and a shank 8c integral with each ball 8b projecting towards the vehicle centreline.
  • the chassis side members 2a are bridged by an underhung platform 2b on which two double convoluted bellows type fluid springs 9 are supported one on each side of and adjacent to the centreline.
  • a rigid lever 10 extends between each spring 9 and the saddle 4 on the same side of the vehicle, each lever 10 being pivoted between its ends on a respective ball shank 8c and cranked at one end.
  • the cranked end is journalled upon the saddle pin 4b and the other end overlies and abuts the fluid spring 9.
  • each fluid spring 9 will act as though it were located with its axis at the intersection of the axis 11 of the saddle pins 4b a nd a straight line 12 drawn from the actual fluid spring 9 axis and passing through the pivotal centre of the ball joint 8, and because the sockets 8a of the latter are fastened to the chassis side members 2a and the fluid springs 9 are actually located between the side members 2a the intersection will be outwardly of the side members 2a. Hence it is possible to obtain the same anti-roll characteristics with the fluid springs 9 actually located near the centreline as if these springs were located over the wheels 1.
  • the virtual center '13 of the leaf spring 5 is determined by the relative positions of the spring, the pivotal connections 8b and 4b relative to the chassis. This may be illustrated as follows:
  • a link may be used to replace the leaf spring, the ends of the link forming with the two points mentioned on the lever a parallelogram to carry torque. Transverse location of the axle may then be effected by means of .a Panhard rod or like device.
  • the levers may be chosen to provide a desired mechanical advantage if required by selection of the lever arm lengths.
  • a further advantage of the system is that the spring, which need not be pneumatic, is removed from the immediate neighbourhood of moisture and dirt thrown up by the wheels.
  • An anti-roll suspension system for a wheeled vehicle comprising a vehicle chassis, an axle transverse to the center line of said chassis movable vertically relative to said chassis, wheels mounted on said axle, at least one outboard of each side of said chassis, a pair of levers, one on each side of the center line of said chassis extending from a point inboard of the sides of said chassis to a point at said axle outboard of said chassis and inboard of a wheel mounted on said axle and pivotally connected to said axle at said point, a spring for each said lever connecting the inboard end of said lever to said chassis and positioned to support the chassis from the inboard end of the lever and a fulcrum for said lever mounted on said chassis, providing a universal pivotal connection to said lever outboard of a straight line connecting the connection of said lever to said spring and to said axle.
  • An anti-roll suspension system comprising a pair of light leaf springs mounted between the axle of said vehicle and said chassis in position to fix the location of said axle relative to said chassis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
US861313A 1958-12-24 1959-12-22 Vehicle suspension systems Expired - Lifetime US3063733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41626/58A GB933332A (en) 1958-12-24 1958-12-24 Improvements in vehicle suspension systems

Publications (1)

Publication Number Publication Date
US3063733A true US3063733A (en) 1962-11-13

Family

ID=10420564

Family Applications (1)

Application Number Title Priority Date Filing Date
US861313A Expired - Lifetime US3063733A (en) 1958-12-24 1959-12-22 Vehicle suspension systems

Country Status (3)

Country Link
US (1) US3063733A (fr)
FR (1) FR1243697A (fr)
GB (1) GB933332A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664452A (en) * 1968-12-04 1972-05-23 Friedrich Schaeff Axle suspension for automotive vehicles
US6733022B2 (en) 1998-12-01 2004-05-11 Curtis S. Bradshaw Air bag for sprint car

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9014233U1 (de) * 1990-10-13 1990-12-20 Bergische Achsenfabrik Fr. Kotz & Söhne, 5276 Wiehl Luftfederachse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1679268A (en) * 1927-01-19 1928-07-31 Tom A Rigney Shock absorber
US1849765A (en) * 1930-06-10 1932-03-15 Int Motor Co Spring mounting for individual wheels
US2023135A (en) * 1933-02-11 1935-12-03 Charles A Hawkins Vehicle suspension
US2260634A (en) * 1939-08-09 1941-10-28 Mullner Ludwig Combined spring and shock absorber
US2740640A (en) * 1953-12-01 1956-04-03 George F Schaefer Wheel suspension of the lever and coil type

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1679268A (en) * 1927-01-19 1928-07-31 Tom A Rigney Shock absorber
US1849765A (en) * 1930-06-10 1932-03-15 Int Motor Co Spring mounting for individual wheels
US2023135A (en) * 1933-02-11 1935-12-03 Charles A Hawkins Vehicle suspension
US2260634A (en) * 1939-08-09 1941-10-28 Mullner Ludwig Combined spring and shock absorber
US2740640A (en) * 1953-12-01 1956-04-03 George F Schaefer Wheel suspension of the lever and coil type

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664452A (en) * 1968-12-04 1972-05-23 Friedrich Schaeff Axle suspension for automotive vehicles
US6733022B2 (en) 1998-12-01 2004-05-11 Curtis S. Bradshaw Air bag for sprint car

Also Published As

Publication number Publication date
FR1243697A (fr) 1960-10-14
GB933332A (en) 1963-08-08

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